JSObjectProxy.hh

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#ifndef PythonMonkey_JSObjectProxy_
#define PythonMonkey_JSObjectProxy_
 
#include <jsapi.h>
 
#include <Python.h>
 
#include <unordered_map>
 
 
typedef struct {
  PyDictObject dict;
  JS::PersistentRootedObject *jsObject;
} JSObjectProxy;
 
struct JSObjectProxyMethodDefinitions {
public:
  static void JSObjectProxy_dealloc(JSObjectProxy *self);
 
  static Py_ssize_t JSObjectProxy_length(JSObjectProxy *self);
 
  static PyObject *JSObjectProxy_get(JSObjectProxy *self, PyObject *key);
 
  static PyObject *JSObjectProxy_get_subscript(JSObjectProxy *self, PyObject *key);
 
  static int JSObjectProxy_contains(JSObjectProxy *self, PyObject *key);
 
  static int JSObjectProxy_assign(JSObjectProxy *self, PyObject *key, PyObject *value);
 
  static PyObject *JSObjectProxy_richcompare(JSObjectProxy *self, PyObject *other, int op);
 
  // private
  static bool JSObjectProxy_richcompare_helper(JSObjectProxy *self, PyObject *other, std::unordered_map<PyObject *, PyObject *> &visited);
 
  static PyObject *JSObjectProxy_iter(JSObjectProxy *self);
 
  static PyObject *JSObjectProxy_iter_next(JSObjectProxy *self);
 
  static PyObject *JSObjectProxy_repr(JSObjectProxy *self);
 
  static PyObject *JSObjectProxy_or(JSObjectProxy *self, PyObject *other);
 
  static PyObject *JSObjectProxy_ior(JSObjectProxy *self, PyObject *other);
 
  static PyObject *JSObjectProxy_get_method(JSObjectProxy *self, PyObject *const *args, Py_ssize_t nargs);
 
  static PyObject *JSObjectProxy_setdefault_method(JSObjectProxy *self, PyObject *const *args, Py_ssize_t nargs);
 
  static PyObject *JSObjectProxy_pop_method(JSObjectProxy *self, PyObject *const *args, Py_ssize_t nargs);
 
  static PyObject *JSObjectProxy_clear_method(JSObjectProxy *self);
 
  static PyObject *JSObjectProxy_copy_method(JSObjectProxy *self);
 
  static PyObject *JSObjectProxy_update_method(JSObjectProxy *self, PyObject *args, PyObject *kwds);
 
  static PyObject *JSObjectProxy_keys_method(JSObjectProxy *self);
 
  static PyObject *JSObjectProxy_values_method(JSObjectProxy *self);
 
  static PyObject *JSObjectProxy_items_method(JSObjectProxy *self);
 
  static int JSObjectProxy_traverse(JSObjectProxy *self, visitproc visit, void *arg);
 
  static int JSObjectProxy_clear(JSObjectProxy *self);
};
 
 
// docs for methods, copied from cpython
PyDoc_STRVAR(getitem__doc__,
  "__getitem__($self, key, /)\n--\n\nReturn self[key].");
 
PyDoc_STRVAR(dict_get__doc__,
  "get($self, key, default=None, /)\n"
  "--\n"
  "\n"
  "Return the value for key if key is in the dictionary, else default.");
 
PyDoc_STRVAR(dict_setdefault__doc__,
  "setdefault($self, key, default=None, /)\n"
  "--\n"
  "\n"
  "Insert key with a value of default if key is not in the dictionary.\n"
  "\n"
  "Return the value for key if key is in the dictionary, else default.");
 
PyDoc_STRVAR(dict_pop__doc__,
  "pop($self, key, default=<unrepresentable>, /)\n"
  "--\n"
  "\n"
  "D.pop(k[,d]) -> v, remove specified key and return the corresponding value.\n"
  "\n"
  "If the key is not found, return the default if given; otherwise,\n"
  "raise a KeyError.");
 
PyDoc_STRVAR(clear__doc__,
  "D.clear() -> None.  Remove all items from D.");
 
PyDoc_STRVAR(copy__doc__,
  "D.copy() -> a shallow copy of D");
 
PyDoc_STRVAR(keys__doc__,
  "D.keys() -> a set-like object providing a view on D's keys");
PyDoc_STRVAR(items__doc__,
  "D.items() -> a set-like object providing a view on D's items");
PyDoc_STRVAR(values__doc__,
  "D.values() -> an object providing a view on D's values");
 
PyDoc_STRVAR(update__doc__,
  "D.update([E, ]**F) -> None.  Update D from dict/iterable E and F.\n\
If E is present and has a .keys() method, then does:  for k in E: D[k] = E[k]\n\
If E is present and lacks a .keys() method, then does:  for k, v in E: D[k] = v\n\
In either case, this is followed by: for k in F:  D[k] = F[k]");
 
PyDoc_STRVAR(dict_keys__doc__,
  "D.keys() -> a set-like object providing a view on D's keys");
PyDoc_STRVAR(dict_items__doc__,
  "D.items() -> a set-like object providing a view on D's items");
PyDoc_STRVAR(dict_values__doc__,
  "D.values() -> an object providing a view on D's values");
 
static PyMappingMethods JSObjectProxy_mapping_methods = {
  .mp_length = (lenfunc)JSObjectProxyMethodDefinitions::JSObjectProxy_length,
  .mp_subscript = (binaryfunc)JSObjectProxyMethodDefinitions::JSObjectProxy_get_subscript,
  .mp_ass_subscript = (objobjargproc)JSObjectProxyMethodDefinitions::JSObjectProxy_assign
};
 
static PySequenceMethods JSObjectProxy_sequence_methods = {
  .sq_contains = (objobjproc)JSObjectProxyMethodDefinitions::JSObjectProxy_contains
};
 
static PyNumberMethods JSObjectProxy_number_methods = {
  .nb_or = (binaryfunc)JSObjectProxyMethodDefinitions::JSObjectProxy_or,
  .nb_inplace_or = (binaryfunc)JSObjectProxyMethodDefinitions::JSObjectProxy_ior
};
 
static PyMethodDef JSObjectProxy_methods[] = {
  {"setdefault", (PyCFunction)JSObjectProxyMethodDefinitions::JSObjectProxy_setdefault_method, METH_FASTCALL, dict_setdefault__doc__},
  {"__getitem__", (PyCFunction)JSObjectProxyMethodDefinitions::JSObjectProxy_get, METH_O | METH_COEXIST, getitem__doc__},
  {"get", (PyCFunction)JSObjectProxyMethodDefinitions::JSObjectProxy_get_method, METH_FASTCALL, dict_get__doc__},
  {"pop", (PyCFunction)JSObjectProxyMethodDefinitions::JSObjectProxy_pop_method, METH_FASTCALL, dict_pop__doc__},
  {"clear", (PyCFunction)JSObjectProxyMethodDefinitions::JSObjectProxy_clear_method, METH_NOARGS, clear__doc__},
  {"copy", (PyCFunction)JSObjectProxyMethodDefinitions::JSObjectProxy_copy_method, METH_NOARGS, copy__doc__},
  {"update", (PyCFunction)JSObjectProxyMethodDefinitions::JSObjectProxy_update_method, METH_VARARGS | METH_KEYWORDS, update__doc__},
  {"keys", (PyCFunction)JSObjectProxyMethodDefinitions::JSObjectProxy_keys_method, METH_NOARGS, dict_keys__doc__},
  {"items", (PyCFunction)JSObjectProxyMethodDefinitions::JSObjectProxy_items_method, METH_NOARGS, dict_items__doc__},
  {"values", (PyCFunction)JSObjectProxyMethodDefinitions::JSObjectProxy_values_method, METH_NOARGS, dict_values__doc__},
  {NULL, NULL}                  /* sentinel */
};
 
extern PyTypeObject JSObjectProxyType;
 
#endif